How to include or exclude traffic from routing to an OpenVPN connection?

example.ovpn

client
dev tun
proto udp

remote X.X.X.X 1194

# ----------------
# Routing configuration pulling
# ----------------

# To pull routing conf pushed by the OpenVPN server
pull
# To prevent the conf pushed by the server to be applied
# route-nopull

# ----------------
# Routing local conf
# ----------------

# redirect local network to NOT go via the VPN
# the net_gateway at the end is key
route 192.168.0.0 255.255.0.0 net_gateway

# For more details, see
# https://askubuntu.com/questions/612840/adding-route-on-client-using-openvpn
# https://serverfault.com/questions/631037/how-to-route-only-specific-openvpn-traffic-through-a-openvpn-

# ----------------
# User Pass Auth
# ----------------

# Auth by CLI / interractive
# auth-user-pass
# Auth credentials in a file (first line user; second line passowrd)
# auth-user-pass ./credentials